# 方式一:
import random

# num = ""
# for i in range(10):
#     a = random.randint(0, 9)
#     num += str(a)
# print(num)

# 方式二:
# import random

# num = []
# for i in range(10):
#     a = random.randint(0, 9)
#     num += str(a)
# print(num)
# res = "".join(num)
# print(res)


# 方式三:
# import random
#
# print("%010d" % random.randint(0, 9999999999))
